Please welcome the Lighthouse Research Project!

Lighthouse is a lighter, nimbler version of Qt/Embedded, which does not
contain a window system. Instead, it uses graphics system plugins to
provide the necessary functionality or interface with existing window
systems.

The first version was written by Rhys.

Squashed commit.

4 files changed, 570 insertions, 0 deletions

diff --git a/src/plugins/generic/linuxinput/linuxinput.pro b/src/plugins/generic/linuxinput/linuxinput.pro
new file mode 100644
index 0000000..ad9f6a9
--- /dev/null
+++ b/src/plugins/generic/linuxinput/linuxinput.pro
@@ -0,0 +1,18 @@
+TARGET = qlinuxinputplugin
+include(../../qpluginbase.pri)
+
+QTDIR_build:DESTDIR = $$QT_BUILD_TREE/plugins/generic
+target.path = $$[QT_INSTALL_PLUGINS]/generic
+INSTALLS += target
+
+DEFINES += QT_QWS_KBD_LINUXINPUT
+
+HEADERS	= qlinuxinput.h
+
+SOURCES	= main.cpp \
+	qlinuxinput.cpp
+
+HEADERS	+= $$QT_SOURCE_TREE/src/gui/embedded/qkbd_qws.h \
+	$$QT_SOURCE_TREE/src/gui/embedded/qkbd_qws_p.h
+
+SOURCES	+= $$QT_SOURCE_TREE/src/gui/embedded/qkbd_qws.cpp
diff --git a/src/plugins/generic/linuxinput/main.cpp b/src/plugins/generic/linuxinput/main.cpp
new file mode 100644
index 0000000..21209b8
--- /dev/null
+++ b/src/plugins/generic/linuxinput/main.cpp
@@ -0,0 +1,80 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights.  These rights are described in the Nokia Qt LGPL
+** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <qgenericplugin_lite.h>
+#include "qlinuxinput.h"
+
+QT_BEGIN_NAMESPACE
+
+class QLinuxInputPlugin : public QGenericPlugin
+{
+public:
+    QLinuxInputPlugin();
+
+    QStringList keys() const;
+    QObject* create(const QString &key, const QString &specification);
+};
+
+QLinuxInputPlugin::QLinuxInputPlugin()
+    : QGenericPlugin()
+{
+}
+
+QStringList QLinuxInputPlugin::keys() const
+{
+    return (QStringList()
+            << QLatin1String("LinuxInputMouse")
+            << QLatin1String("LinuxInputKeyboard"));
+}
+
+QObject* QLinuxInputPlugin::create(const QString &key,
+                                                 const QString &specification)
+{
+    if (!key.compare(QLatin1String("LinuxInputMouse"), Qt::CaseInsensitive))
+        return new QLinuxInputMouseHandler(key, specification);
+    if (!key.compare(QLatin1String("LinuxInputKeyboard"), Qt::CaseInsensitive))
+        return new QLinuxInputKeyboardHandler(key, specification);
+    return 0;
+    }
+
+Q_EXPORT_PLUGIN2(qlinuxinputplugin, QLinuxInputPlugin)
+
+QT_END_NAMESPACE
diff --git a/src/plugins/generic/linuxinput/qlinuxinput.cpp b/src/plugins/generic/linuxinput/qlinuxinput.cpp
new file mode 100644
index 0000000..2ce687d
--- /dev/null
+++ b/src/plugins/generic/linuxinput/qlinuxinput.cpp
@@ -0,0 +1,371 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights.  These rights are described in the Nokia Qt LGPL
+** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include "qlinuxinput.h"
+
+
+#include <QSocketNotifier>
+#include <QStringList>
+#include <QPoint>
+#include <QMouseEvent>
+#include <private/qapplication_p.h>
+
+#include <qkbd_qws.h>
+
+
+#include <qplatformdefs.h>
+#include <private/qcore_unix_p.h> // overrides QT_OPEN
+
+#include <errno.h>
+#include <termios.h>
+
+#include <linux/kd.h>
+#include <linux/input.h>
+
+#include <qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+QLinuxInputMouseHandler::QLinuxInputMouseHandler(const QString &key,
+                                                 const QString &specification)
+    : m_notify(0), m_x(0), m_y(0), m_buttons(0)
+{
+    qDebug() << "QLinuxInputMouseHandler" << key << specification;
+
+
+    setObjectName(QLatin1String("LinuxInputSubsystem Mouse Handler"));
+
+    QString dev = QLatin1String("/dev/input/event0");
+    if (specification.startsWith(QLatin1String("/dev/")))
+        dev = specification;
+
+    m_fd = QT_OPEN(dev.toLocal8Bit().constData(), O_RDONLY | O_NDELAY, 0);
+    if (m_fd >= 0) {
+        m_notify = new QSocketNotifier(m_fd, QSocketNotifier::Read, this);
+        connect(m_notify, SIGNAL(activated(int)), this, SLOT(readMouseData()));
+    } else {
+        qWarning("Cannot open mouse input device '%s': %s", qPrintable(dev), strerror(errno));
+        return;
+    }
+
+}
+
+
+QLinuxInputMouseHandler::~QLinuxInputMouseHandler()
+{
+    if (m_fd >= 0)
+        QT_CLOSE(m_fd);
+}
+
+void QLinuxInputMouseHandler::readMouseData()
+{
+    struct ::input_event buffer[32];
+    int n = 0;
+
+    forever {
+        n = QT_READ(m_fd, reinterpret_cast<char *>(buffer) + n, sizeof(buffer) - n);
+
+        if (n == 0) {
+            qWarning("Got EOF from the input device.");
+            return;
+        } else if (n < 0 && (errno != EINTR && errno != EAGAIN)) {
+            qWarning("Could not read from input device: %s", strerror(errno));
+            return;
+        } else if (n % sizeof(buffer[0]) == 0) {
+            break;
+        }
+    }
+
+    n /= sizeof(buffer[0]);
+
+    for (int i = 0; i < n; ++i) {
+        struct ::input_event *data = &buffer[i];
+
+        bool unknown = false;
+        if (data->type == EV_ABS) {
+            if (data->code == ABS_X) {
+                m_x = data->value;
+            } else if (data->code == ABS_Y) {
+                m_y = data->value;
+            } else {
+                unknown = true;
+            }
+        } else if (data->type == EV_REL) {
+            if (data->code == REL_X) {
+                m_x += data->value;
+            } else if (data->code == REL_Y) {
+                m_y += data->value;
+            } else {
+                unknown = true;
+            }
+        } else if (data->type == EV_KEY && data->code == BTN_TOUCH) {
+            m_buttons = data->value ? Qt::LeftButton : Qt::NoButton;
+        } else if (data->type == EV_KEY) {
+            Qt::MouseButton button = Qt::NoButton;
+            switch (data->code) {
+            case BTN_LEFT: button = Qt::LeftButton; break;
+            case BTN_MIDDLE: button = Qt::MidButton; break;
+            case BTN_RIGHT: button = Qt::RightButton; break;
+            }
+            if (data->value)
+                m_buttons |= button;
+            else
+                m_buttons &= ~button;
+
+            Qt::KeyboardModifiers modifiers = Qt::NoModifier; //###
+            QMouseEvent m(data->value ? QEvent::MouseButtonPress : QEvent::MouseButtonRelease,
+                          QPoint(m_x, m_y), QPoint(m_x, m_y), button, m_buttons, modifiers);
+            QApplicationPrivate::handleMouseEvent(0, m);
+        } else if (data->type == EV_SYN && data->code == SYN_REPORT) {
+            QPoint pos(m_x, m_y);
+
+            Qt::KeyboardModifiers modifiers = Qt::NoModifier; //###
+            QMouseEvent m(QEvent::MouseMove, QPoint(m_x, m_y), QPoint(m_x, m_y),
+                          Qt::NoButton, m_buttons, modifiers);
+            QApplicationPrivate::handleMouseEvent(0, m);
+
+            // pos = m_handler->transform(pos);
+            //m_handler->limitToScreen(pos);
+            //m_handler->mouseChanged(pos, m_buttons);
+
+        } else if (data->type == EV_MSC && data->code == MSC_SCAN) {
+            // kernel encountered an unmapped key - just ignore it
+            continue;
+        } else {
+            unknown = true;
+        }
+        if (unknown) {
+            qWarning("unknown mouse event type=%x, code=%x, value=%x", data->type, data->code, data->value);
+        }
+    }
+}
+
+
+
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//Keyboard handler
+
+
+
+
+class QWSLinuxInputKeyboardHandler : public QWSKeyboardHandler
+{
+public:
+    QWSLinuxInputKeyboardHandler(const QString&);
+    ~QWSLinuxInputKeyboardHandler();
+
+    virtual bool filterInputEvent(quint16 &input_code, qint32 &input_value);
+
+//private:
+//    QWSLinuxInputKbPrivate *d;
+};
+
+
+QWSLinuxInputKeyboardHandler::QWSLinuxInputKeyboardHandler(const QString &device)
+    : QWSKeyboardHandler(device)
+{
+}
+
+QWSLinuxInputKeyboardHandler::~QWSLinuxInputKeyboardHandler()
+{
+}
+
+bool QWSLinuxInputKeyboardHandler::filterInputEvent(quint16 &, qint32 &)
+{
+    return false;
+}
+
+
+QLinuxInputKeyboardHandler::QLinuxInputKeyboardHandler(const QString &key, const QString &specification)
+    : m_handler(0), m_fd(-1), m_tty_fd(-1), m_orig_kbmode(K_XLATE)
+{
+    setObjectName(QLatin1String("LinuxInputSubsystem Keyboard Handler"));
+
+    QString dev = QLatin1String("/dev/input/event1");
+    int repeat_delay = -1;
+    int repeat_rate = -1;
+
+    QStringList args = specification.split(QLatin1Char(':'));
+    foreach (const QString &arg, args) {
+        if (arg.startsWith(QLatin1String("repeat-delay=")))
+            repeat_delay = arg.mid(13).toInt();
+        else if (arg.startsWith(QLatin1String("repeat-rate=")))
+            repeat_rate = arg.mid(12).toInt();
+        else if (arg.startsWith(QLatin1String("/dev/")))
+            dev = arg;
+    }
+
+    m_handler = new QWSLinuxInputKeyboardHandler(dev); //This is a hack to avoid copying all the QWS code
+
+    m_fd = QT_OPEN(dev.toLocal8Bit().constData(), O_RDWR, 0);
+    if (m_fd >= 0) {
+        if (repeat_delay > 0 && repeat_rate > 0) {
+            int kbdrep[2] = { repeat_delay, repeat_rate };
+            ::ioctl(m_fd, EVIOCSREP, kbdrep);
+        }
+
+        QSocketNotifier *notifier;
+        notifier = new QSocketNotifier(m_fd, QSocketNotifier::Read, this);
+        connect(notifier, SIGNAL(activated(int)), this, SLOT(readKeycode()));
+
+        // play nice in case we are started from a shell (e.g. for debugging)
+        m_tty_fd = isatty(0) ? 0 : -1;
+
+        if (m_tty_fd >= 0) {
+            // save tty config for restore.
+            tcgetattr(m_tty_fd, &m_tty_attr);
+
+            struct ::termios termdata;
+            tcgetattr(m_tty_fd, &termdata);
+
+            // record the original mode so we can restore it again in the destructor.
+            ::ioctl(m_tty_fd, KDGKBMODE, &m_orig_kbmode);
+
+            // setting this tranlation mode is even needed in INPUT mode to prevent
+            // the shell from also interpreting codes, if the process has a tty
+            // attached: e.g. Ctrl+C wouldn't copy, but kill the application.
+            ::ioctl(m_tty_fd, KDSKBMODE, K_MEDIUMRAW);
+
+            // set the tty layer to pass-through
+            termdata.c_iflag = (IGNPAR | IGNBRK) & (~PARMRK) & (~ISTRIP);
+            termdata.c_oflag = 0;
+            termdata.c_cflag = CREAD | CS8;
+            termdata.c_lflag = 0;
+            termdata.c_cc[VTIME]=0;
+            termdata.c_cc[VMIN]=1;
+            cfsetispeed(&termdata, 9600);
+            cfsetospeed(&termdata, 9600);
+            tcsetattr(m_tty_fd, TCSANOW, &termdata);
+        }
+    } else {
+        qWarning("Cannot open keyboard input device '%s': %s", qPrintable(dev), strerror(errno));
+        return;
+    }
+}
+
+QLinuxInputKeyboardHandler::~QLinuxInputKeyboardHandler()
+{
+    if (m_tty_fd >= 0) {
+        ::ioctl(m_tty_fd, KDSKBMODE, m_orig_kbmode);
+        tcsetattr(m_tty_fd, TCSANOW, &m_tty_attr);
+    }
+    if (m_fd >= 0)
+        QT_CLOSE(m_fd);
+    delete m_handler;
+}
+
+void QLinuxInputKeyboardHandler::switchLed(int led, bool state)
+{
+    struct ::input_event led_ie;
+    ::gettimeofday(&led_ie.time, 0);
+    led_ie.type = EV_LED;
+    led_ie.code = led;
+    led_ie.value = state;
+
+    QT_WRITE(m_fd, &led_ie, sizeof(led_ie));
+}
+
+
+
+void QLinuxInputKeyboardHandler::readKeycode()
+{
+    struct ::input_event buffer[32];
+    int n = 0;
+
+    forever {
+        n = QT_READ(m_fd, reinterpret_cast<char *>(buffer) + n, sizeof(buffer) - n);
+
+        if (n == 0) {
+            qWarning("Got EOF from the input device.");
+            return;
+        } else if (n < 0 && (errno != EINTR && errno != EAGAIN)) {
+            qWarning("Could not read from input device: %s", strerror(errno));
+            return;
+        } else if (n % sizeof(buffer[0]) == 0) {
+            break;
+        }
+    }
+
+    n /= sizeof(buffer[0]);
+
+    for (int i = 0; i < n; ++i) {
+        if (buffer[i].type != EV_KEY)
+            continue;
+
+        quint16 code = buffer[i].code;
+        qint32 value = buffer[i].value;
+
+        if (m_handler->filterInputEvent(code, value))
+            continue;
+
+        QWSKeyboardHandler::KeycodeAction ka;
+        ka = m_handler->processKeycode(code, value != 0, value == 2);
+
+        switch (ka) {
+        case QWSKeyboardHandler::CapsLockOn:
+        case QWSKeyboardHandler::CapsLockOff:
+            switchLed(LED_CAPSL, ka == QWSKeyboardHandler::CapsLockOn);
+            break;
+
+        case QWSKeyboardHandler::NumLockOn:
+        case QWSKeyboardHandler::NumLockOff:
+            switchLed(LED_NUML, ka == QWSKeyboardHandler::NumLockOn);
+            break;
+
+        case QWSKeyboardHandler::ScrollLockOn:
+        case QWSKeyboardHandler::ScrollLockOff:
+            switchLed(LED_SCROLLL, ka == QWSKeyboardHandler::ScrollLockOn);
+            break;
+
+        default:
+            // ignore console switching and reboot
+            break;
+        }
+    }
+}
+
+
+
+
+
+QT_END_NAMESPACE
diff --git a/src/plugins/generic/linuxinput/qlinuxinput.h b/src/plugins/generic/linuxinput/qlinuxinput.h
new file mode 100644
index 0000000..5a90c8f
--- /dev/null
+++ b/src/plugins/generic/linuxinput/qlinuxinput.h
@@ -0,0 +1,101 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights.  These rights are described in the Nokia Qt LGPL
+** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QLINUXINPUT_H
+#define QLINUXINPUT_H
+
+#include <qobject.h>
+#include <Qt>
+#include <termios.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QSocketNotifier;
+
+class QLinuxInputMouseHandler : public QObject
+{
+    Q_OBJECT
+public:
+    QLinuxInputMouseHandler(const QString &key, const QString &specification);
+    ~QLinuxInputMouseHandler();
+
+private slots:
+    void readMouseData();
+
+private:
+    QSocketNotifier *          m_notify;
+    int                        m_fd;
+    int                        m_x, m_y;
+    Qt::MouseButtons           m_buttons;
+};
+
+
+class QWSLinuxInputKeyboardHandler;
+
+class QLinuxInputKeyboardHandler : public QObject
+{
+    Q_OBJECT
+public:
+    QLinuxInputKeyboardHandler(const QString &key, const QString &specification);
+    ~QLinuxInputKeyboardHandler();
+
+
+private:
+    void switchLed(int, bool);
+
+private slots:
+    void readKeycode();
+
+private:
+    QWSLinuxInputKeyboardHandler *m_handler;
+    int                           m_fd;
+    int                           m_tty_fd;
+    struct termios                m_tty_attr;
+    int                           m_orig_kbmode;
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QLINUXINPUT_H